From: rav@goanna.cs.rmit.edu.au (robin)
Subject: Re: Leading zeros with Int_IO.Put()? Or another package?
Date: 1996/11/19
Date: 1996-11-19T00:00:00+00:00 [thread overview]
Message-ID: <56rfv3$q2b$1@goanna.cs.rmit.edu.au> (raw)
In-Reply-To: 328A0A7D.21A2@lmtas.lmco.com
Ken Garlington <garlingtonke@lmtas.lmco.com> writes:
>robin wrote:
>>
>> dewar@merv.cs.nyu.edu (Robert Dewar) writes:
>>
>> >robin says
>>
>> >>"Interface to PL/I and you can use standard I/O:
>>
>> >>put edit (n) (P'-99999999');
>>
>> >>and you don't have to worry about whether the number is
>> >>negative either. The nines in the picture format
>> >>force leading zeros to print.
>>
>> >>And if you want, you can insert commas in the output
>> >>to make it more readable. The picture specification becomes:
>>
>> >I guess robin knows PL/1 and does not know Ada!
>>
>> >If you want to use picture editing to solve this kind of problem, then
>> >use the picture editing in Ada, no need to wander off into PL/1, even in
>> >the unlikely case that you have a PL/1 compiler at hand. Personally I
>> >dislike the picture stuff in PL/1, they tried to improve on COBOL and
>> >made a mess of it.
>>
>> Isn't it amazing! Robert Dewar [among others] already has
>> had an opportunity to reply in this vein to the original
>> posting and subsequent ones, but it didn't occur to him to
>> do so, more than likely because he didn't know that a limited
>> facility existed in Ada. Instead, he suggested using
>> string facilities.
>Actually, if you know Ada, it's not amazing at all. The Ada picture I/O is for
>decimal types; the original request was for integer types. If you don't want to
>convert your type,
Really! The task is to convert to string type. You're saying
that that's not a type conversion.
the suggestion by Dr. Dewar is more straight-forward. If you
>do want to use picture I/O, you probably still want to use an abstraction of
>this facility to hide the details of type conversion, instantiation of picture I/O,
>etc.
>Ada people have this perversity of suggesting the most straight-forward and
>maintainable approach first. :)
>>
>> Below is Robert Dewar's previous posting:
>>
>> >This is a place where CLEARLY there is a missing abstraction (Put with
>> >leading zeros), and it seems obvious that you fix this in the way that
>> >you always do abstraction extension, you create an appropriate abstraction
>> >and use it. If it is useful enough, hopefully it gets to be widely available.
>>
>> >Note that if you do want to construct on the fly, a much clearer way is to
>> >use the string routines from the string packages, which have padding
>> >capabilities.
>>
>> PL/I is not restricted to picture editing with decimal data,
>> (one poster suggested changing to Ada decimal data in order to use
>> Ada's limited editing). PL/I requires *only* the single line:
>>
>> put edit (n) (P'-99999999');
>>
>> and not the (up to) page of Ada code to implement the
>> requirement of the original post.
next prev parent reply other threads:[~1996-11-19 0:00 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-11-05 0:00 Leading zeros with Int_IO.Put()? Or another package? J.D. Baldwin
1996-11-05 0:00 ` Samuel Tardieu
1996-11-05 0:00 ` David Shochat
1996-11-08 0:00 ` robin
1996-11-08 0:00 ` Ken Garlington
1996-11-08 0:00 ` Robert Dewar
1996-11-10 0:00 ` Verne Arase
1996-11-13 0:00 ` robin
1996-11-13 0:00 ` Ken Garlington
1996-11-19 0:00 ` robin [this message]
1996-11-22 0:00 ` Robert Dewar
1996-11-22 0:00 ` Ken Garlington
1996-11-17 0:00 ` Robert Dewar
1996-11-13 0:00 ` robin
1996-11-13 0:00 ` Ken Garlington
1996-11-19 0:00 ` robin
1996-11-19 0:00 ` Robert Dewar
1996-11-20 0:00 ` Richard A. O'Keefe
1996-11-20 0:00 ` Robert Dewar
1996-11-20 0:00 ` robin
1996-11-20 0:00 ` Robert Dewar
1996-11-22 0:00 ` Richard A. O'Keefe
1996-11-25 0:00 ` shmuel
1996-11-20 0:00 ` Larry J. Elmore
1996-11-25 0:00 ` robin
1996-11-25 0:00 ` Robert Dewar
1996-11-26 0:00 ` Larry J. Elmore
1996-11-20 0:00 ` Richard A. O'Keefe
1996-11-22 0:00 ` robin
1996-11-22 0:00 ` Richard A. O'Keefe
1996-11-23 0:00 ` robin
1996-11-21 0:00 ` Jerry Coffin
1996-11-22 0:00 ` Ken Garlington
1996-11-20 0:00 ` Norman H. Cohen
1996-11-22 0:00 ` Ken Garlington
1996-11-27 0:00 ` Verne Arase
1996-12-02 0:00 ` Ken Garlington
[not found] ` <56tjrh$4a <MPLANET.3294c204jcoffin989a3e@news.rmi.net>
1996-11-24 0:00 ` Bert
1996-11-21 0:00 ` Robert I. Eachus
1996-11-22 0:00 ` robin
1996-11-06 0:00 ` Norman H. Cohen
1996-11-07 0:00 ` Pascal Obry
1996-11-07 0:00 ` Norman H. Cohen
1996-11-08 0:00 ` Norman H. Cohen
1996-11-09 0:00 ` Robert Dewar
1996-11-06 0:00 ` Stephen Leake
1996-11-06 0:00 ` Robert I. Eachus
1996-11-08 0:00 ` Norman H. Cohen
1996-11-08 0:00 ` David Emery
1996-11-24 0:00 ` Fergus Henderson
1996-11-24 0:00 ` Robert Dewar
1996-11-25 0:00 ` Larry Kilgallen
1996-11-25 0:00 ` J. David Bryan
1996-11-27 0:00 ` Verne Arase
1996-11-28 0:00 ` Richard A. O'Keefe
-- strict thread matches above, loose matches on Subject: below --
1996-12-15 0:00 Robert Dewar
1996-11-05 0:00 Collection of 2500+ links about Object-Orientation - interested ? Manfred Schneider
1996-11-07 0:00 ` Leading zeros with Int_IO.Put()? Or another package? John Herro
1996-11-07 0:00 ` Robert Dewar
1996-11-07 0:00 ` James Rogers
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